It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The light hitting the earth right now is 30 thousand years old.
163
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The United States has paved enough roads to circle the Earth over 150 times.
72
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
According to a 2011 poll, 32% of Russians believe that the Sun orbits Earth.
11